package com.atguigu.lease.web.admin.service.impl;

import com.atguigu.lease.common.minio.MinioYml;
import com.atguigu.lease.web.admin.service.FileService;
import io.minio.*;
import io.minio.errors.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.UUID;

@Service
public class FileServiceImpl implements FileService {
    @Autowired
    private MinioYml minioYml;

    @Autowired
    private MinioClient minioClient;

    @Override
    public String uploadFile(MultipartFile file) throws ServerException, InsufficientDataException, ErrorResponseException, IOException, NoSuchAlgorithmException, InvalidKeyException, InvalidResponseException, XmlParserException, InternalException {

            boolean found = minioClient.bucketExists(BucketExistsArgs.builder().bucket(minioYml.getBucketName()).build());
            if (!found) {
                //创建hello-minio桶
                minioClient.makeBucket(MakeBucketArgs.builder().bucket(minioYml.getBucketName()).build());
                //设置hello-minio桶的访问权限
                String policy = """
                        {
                          "Statement" : [ {
                            "Action" : "s3:GetObject",
                            "Effect" : "Allow",
                            "Principal" : "*",
                            "Resource" : "arn:aws:s3:::%s/*"
                          } ],
                          "Version" : "2012-10-17"
                        }""".formatted(minioYml.getBucketName());
                minioClient.setBucketPolicy(SetBucketPolicyArgs.builder()
                        .bucket(minioYml.getBucketName()).config(policy).build());
            } else {
                System.out.println("Bucket '"+minioYml.getBucketName()+"' already exists.");
            }
            String filename = new SimpleDateFormat("yyyyMMdd").format(new Date()) + "/" + UUID.randomUUID() + "-" + file.getOriginalFilename();
            minioClient.putObject(PutObjectArgs.builder().
                    bucket(minioYml.getBucketName()).
                    object(filename).
                    stream(file.getInputStream(), file.getSize(), -1).
                    contentType(file.getContentType()).build());

            return String.join("/", minioYml.getEndpoint(), minioYml.getBucketName(), filename);
//        return null;

        /*try {
            boolean bucketExists = client.bucketExists(BucketExistsArgs.builder().bucket(properties.getBucketName()).build());
            if (!bucketExists) {
                client.makeBucket(MakeBucketArgs.builder()
                        .bucket(properties.getBucketName()).build());
                client.setBucketPolicy(SetBucketPolicyArgs
                        .builder()
                        .bucket(properties.getBucketName())
                        .config(createBucketPolicyConfig(properties.getBucketName()))
                        .build());
            }

            String filename = new SimpleDateFormat("yyyyMMdd").format(new Date()) + "/" + UUID.randomUUID() + "-" + file.getOriginalFilename();
            client.putObject(PutObjectArgs.builder().
                    bucket(properties.getBucketName()).
                    object(filename).
                    stream(file.getInputStream(), file.getSize(), -1).
                    contentType(file.getContentType()).build());

            return String.join("/", properties.getEndpoint(), properties.getBucketName(), filename);

        } catch (Exception e) {
            e.printStackTrace();
        }*/
    }
}
